#include <REGX52.H>
#include <INTRINS.H>
void Delay1ms(unsigned int xms)		//@11.0592MHz
{
	unsigned char i, j;

	_nop_();
	_nop_();
	_nop_();
	while(xms){
	i = 11;
	j = 190;
	do
	{
		while (--j);
	} while (--i);
	xms--;
	}
}

void main(){
	 while(1){
     P2 = 0xFE;
	Delay1ms(200);
		 P2 = 0xFD;
	Delay1ms(200);
		 P2 = 0xFB;
	Delay1ms(200);
		 P2 = 0xF7;
	Delay1ms(200);
		 P2 = 0xEF;
	Delay1ms(200);
		 P2 = 0xDF;
	Delay1ms(200);
		 P2 = 0xBF;
	Delay1ms(200);
		 P2 = 0x7F;
	Delay1ms(200);
   }
}